diff options
Diffstat (limited to 'arch/x86/um')
| -rw-r--r-- | arch/x86/um/Kconfig | 10 | ||||
| -rw-r--r-- | arch/x86/um/Makefile | 3 | ||||
| -rw-r--r-- | arch/x86/um/mem_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/um/shared/sysdep/stub_64.h | 1 | ||||
| -rw-r--r-- | arch/x86/um/sysrq_64.c | 4 | ||||
| -rw-r--r-- | arch/x86/um/vdso/Makefile | 3 |
6 files changed, 14 insertions, 9 deletions
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig index 1bcd42c53039..186f13268401 100644 --- a/arch/x86/um/Kconfig +++ b/arch/x86/um/Kconfig @@ -32,12 +32,12 @@ config 3_LEVEL_PGTABLES bool "Three-level pagetables" if !64BIT default 64BIT help - Three-level pagetables will let UML have more than 4G of physical - memory. All the memory that can't be mapped directly will be treated - as high memory. + Three-level pagetables will let UML have more than 4G of physical + memory. All the memory that can't be mapped directly will be treated + as high memory. - However, this it experimental on 32-bit architectures, so if unsure say - N (on x86-64 it's automatically enabled, instead, as it's safe there). + However, this it experimental on 32-bit architectures, so if unsure say + N (on x86-64 it's automatically enabled, instead, as it's safe there). config ARCH_HAS_SC_SIGNALS def_bool !64BIT diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile index a8cde4e8ab11..3d5cd2e57820 100644 --- a/arch/x86/um/Makefile +++ b/arch/x86/um/Makefile @@ -28,7 +28,8 @@ else obj-y += syscalls_64.o vdso/ -subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o +subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o \ + ../lib/memmove_64.o ../lib/memset_64.o subarch-$(CONFIG_PREEMPTION) += ../entry/thunk_64.o endif diff --git a/arch/x86/um/mem_32.c b/arch/x86/um/mem_32.c index 19c5dbd46770..cafd01f730da 100644 --- a/arch/x86/um/mem_32.c +++ b/arch/x86/um/mem_32.c @@ -17,7 +17,7 @@ static int __init gate_vma_init(void) gate_vma.vm_start = FIXADDR_USER_START; gate_vma.vm_end = FIXADDR_USER_END; gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; - gate_vma.vm_page_prot = __P101; + gate_vma.vm_page_prot = PAGE_READONLY; return 0; } diff --git a/arch/x86/um/shared/sysdep/stub_64.h b/arch/x86/um/shared/sysdep/stub_64.h index e9c4b2b38803..92ea1670cf1c 100644 --- a/arch/x86/um/shared/sysdep/stub_64.h +++ b/arch/x86/um/shared/sysdep/stub_64.h @@ -8,6 +8,7 @@ #include <sysdep/ptrace_user.h> #include <generated/asm-offsets.h> +#include <linux/stddef.h> #define STUB_MMAP_NR __NR_mmap #define MMAP_OFFSET(o) (o) diff --git a/arch/x86/um/sysrq_64.c b/arch/x86/um/sysrq_64.c index 903ad91b624f..ef1eb4f4f612 100644 --- a/arch/x86/um/sysrq_64.c +++ b/arch/x86/um/sysrq_64.c @@ -19,8 +19,8 @@ void show_regs(struct pt_regs *regs) print_modules(); printk(KERN_INFO "Pid: %d, comm: %.20s %s %s\n", task_pid_nr(current), current->comm, print_tainted(), init_utsname()->release); - printk(KERN_INFO "RIP: %04lx:[<%016lx>]\n", PT_REGS_CS(regs) & 0xffff, - PT_REGS_IP(regs)); + printk(KERN_INFO "RIP: %04lx:%pS\n", PT_REGS_CS(regs) & 0xffff, + (void *)PT_REGS_IP(regs)); printk(KERN_INFO "RSP: %016lx EFLAGS: %08lx\n", PT_REGS_SP(regs), PT_REGS_EFLAGS(regs)); printk(KERN_INFO "RAX: %016lx RBX: %016lx RCX: %016lx\n", diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile index 5943387e3f35..8c0396fd0e6f 100644 --- a/arch/x86/um/vdso/Makefile +++ b/arch/x86/um/vdso/Makefile @@ -3,6 +3,9 @@ # Building vDSO images for x86. # +# do not instrument on vdso because KASAN is not compatible with user mode +KASAN_SANITIZE := n + # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. KCOV_INSTRUMENT := n |